It’s playtime forPrince GeorgeandPrincess Charlotte!

The royal siblings joined momKate Middletonand little brotherPrince Louisat the King Power Royal Charity Polo Day on Wednesday to cheer on fatherPrince Williamas he andPrince Harrycompeted in the match. However, the little royals' attention was more focused on kicking around a soccer ball thanwatching dad’s game.

George, who turns 6 on July 22, sported a green polo shirt and shorts for the day outdoors. Charlotte, 4, stayed true to her girly style in a pink dress and white sandals with her hair tied back into a ponytail, complete with a bow.

Princess Charlotte.James Whatling/MEGA

Princess Charlotte and Prince George

Tim Rooke/Shutterstock

Prince George, Prince Louis King Power Royal Charity Polo Day, Billingbear Polo Club, Wokingham, UK - 10 Jul 2019

Prince Louis, Prince George, Catherine Duchess of Cambridge King Power Royal Charity Polo Day, Billingbear Polo Club, Wokingham, UK - 10 Jul 2019

Of course, there was still plenty of time for some silly fun — at one point, Charlotte posed with her arms wide above her head and balanced on one leg in an impressive dance move.

Prince George and Princess Charlotte.SplashNews.com

Princess Charlotte and Prince George

Samir Hussein/WireImage

Prince Louis, Prince George, Catherine Duchess of Cambridge King Power Royal Charity Polo Day, Billingbear Polo Club, Wokingham, UK - 10 Jul 2019

When the family needed a moment to relax, they retreated to their car.Prince GeorgeandPrincess Charlotterelaxed in the back of the car with the trunk door popped open, while Kate, 37, sat with Louis on the ground.

Kate Middleton, Prince Louis, Prince George and Princess Charlotte.Tim Rooke/Shutterstock

Catherine Duchess of Cambridge, Prince Louis, Prince George, Princess Charlotte

Catherine Duchess of Cambridge, Prince Louis, Prince George, Princess Charlotte

The royal kids strangers to the polo field. Last summer, George and Charlotte joined their cousins — Savannah and Isla Phillips, the daughters of the Queen’s grandson Peter Phillips — for amemorable playdate at another one of their dad’s charity polo matches.

“The first thing they did when they left the car was slide down the hill on his bum,” an onlooker told PEOPLE at the time. “George was peering over some hoarding around the side of the pitch, grinning at the others, who were messing around with him.”

“Kate is a fantastic mom,” the observer added. “She was calm with the children.” Using a British phrase for “run loose,” the onlooker said, “She let them have their head.”

Prince George.SplashNews.com

Catherine, Duchess Of Cambridge And Prince Louis Attend King Power Royal Charity Polo Day

Prince George, Meghan Duchess of Sussex, Archie Mountbatten-Windsor

Meghan Marklewas also at the family day out with her 2-month-old sonArchie— marking the royal cousins' first public playdate together.

Meghan Markle, Archie and Prince Harry.Tim Rooke/Shutterstock

Prince Harry with Meghan Duchess of Sussex and Archie Harrison Mountbatten-Windsor

Meghan was spotted walking from the car park with little Archie in her arms. She gave him a sweet kiss on the forehead as she made her way to the field.

CHRIS ALLERTON/AFP/Getty Images

people magazine cover

Harry, 34, and Meghan, 37, just celebrated their son’s christening over the weekend with a small group of close friends and family.

“They arebasking in the glow and enjoying each day,” a royal source tells PEOPLE in this week’s cover story. “As most new parents are, they’re just so excited. There’s something new every day. They’re just really happy.”

source: people.com